DE20103242U1 - Fitting for a window, a door or the like. - Google Patents

Abstract

The window or door fitting incorporates a rail (40) placed along the plane of the fixed frame. A first connecting rod (54) is linked by a first pivot bearing (52) to the rail on which a second connecting rod (48) is movably mounted by means of a second pivot bearing (46). The first and second connecting rods are connected by a third pivot bearing (56).The second connecting rod is parallel with the leaf/casement frame. The second pivot bearing of the second connecting rod is displaced to a plane parallel with the plane of the fixed frame, on which the first pivot bearing lies

Description

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Applicant:

Gretsch-Unitas GmbH
Building fittings
Johann-Maus-Strasse 3
71254 Ditzingen

1645 310 16.02.2001

ste / hat

Title: Fitting for a window, door or similar. Description

The invention relates to a fitting for a window, a door or the like with at least three rotatable wings.

EP 0 4 03 774 A1 discloses such a fitting for the sash of a window, with which the sash is not only pivoted when turning but is also lifted off the fixed frame, i.e. removed. In this way, a collision of a sash overlap located inside the room with the fixed frame is prevented.

Other fittings are known from US 1,648,331, US 1,713,561, US 2,554,862, US 2,654,127 and US 4,980,947, with which window sashes are controlled when they are turned. The fitting in the latter publication has two links, one of which is pivotable and the other pivotable and slidably mounted on a rail, and both links are connected to one another via a pivot bearing. However, with this pivot bearing, part of the window frame pivots outwards when the window is opened, which is generally undesirable. This disadvantage is often accepted because with this fitting the sash can be opened without having to open the sash adjacent to the axis of rotation, which is prevented in many fittings by means of a misuse protection device (GFF Magazine for Glass, Windows, Facade 11/99, pages 94 and 95).

The invention is based on the object of further developing a fitting of the type mentioned at the beginning in such a way that the sash can be rotated without opening the adjacent sash, thereby avoiding parts of the sash being pivoted outwards.

This object is achieved according to the invention with a fitting for a window, a door or the like with at least three

rotatable wings, in particular rotatable-tilt wings, in which the axis of rotation of at least one wing executes a controlled movement orthogonal to the axis of rotation when this wing is rotated, with a rail lying in the plane of the fixed frame, a first link articulated to the rail via a first pivot bearing and a second link displaceably mounted on the rail and rotatably mounted via a second pivot bearing, wherein the first and the second link are coupled to one another via a third pivot bearing, and the second link extends parallel to the sash frame, and wherein the pivot bearing of the second link has an offset to a plane which is parallel to the plane of the fixed frame and in which the first pivot bearing lies and the second pivot bearing lies in the plane of the sash frame but laterally next to the vertical frame member.

In the fitting according to the invention, the second pivot bearing, which forms the axis of rotation of the sash, is guided on a rail so that it can move. In addition, this axis of rotation is always in the same plane, which is at a distance from the plane of the first pivot bearing. Another feature provides that the second pivot bearing is in the plane of the sash frame but to the side of the vertical frame beam. This ensures that the sash frame is only pivoted into the interior of the room.

and no part of the sash frame protrudes through the fixed frame.

It is advantageous if the axis of rotation is located behind the wing overlap of the adjacent wing. This has the advantage that the axis of rotation is covered by the wing overlap and is therefore not visible. Only when the middle wing is swung open, i.e. rotated, does the axis of rotation emerge from behind the wing overlap by moving the second pivot bearing in the rail away from the adjacent wing.

In a preferred embodiment, it is provided that the distance of the second link relative to the rail and thus the height of the wing can be changed, in particular adjusted, via the second pivot bearing. The height of the wing can be corrected and adjusted to the height of the other wings via this second pivot bearing.

A preferred embodiment provides that the second pivot bearing is provided on a second carriage that is slidably guided on the rail. This second carriage, which is made of die-cast zinc, for example, is slidably guided in the guide rail, which is made of brass, for example. The tribological properties are selected so that the carriage can be moved smoothly.

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The two handlebars are made of steel strip and can transmit high forces.

Safe and play-free mounting of the slide is ensured by the fact that the rail has an essentially U-shaped profile and the second slide is guided on both sides. The two-sided guidance has the advantage that even improper opening, gusts of wind or the like do not cause any damage to the fitting, especially the rail.

Preferably, the second carriage has a U-shaped profile that is essentially open at the bottom. This makes it possible for the second pivot bearing to be riveted to the second carriage without the rivet head, which protrudes downwards, i.e. in the direction of the rail, having a disruptive effect. Furthermore, the sliding friction surfaces are reduced by the inventive design of the carriage.

A preferred embodiment provides that the second bearing has a second bearing pin, which has a thread over part of its circumference, onto which a press-fit sleeve, which is connected to the second link, is screwed. The height of the wing can be adjusted via this bearing. This adjustable

Bearing designed as a lower bearing, whereby the upper bearing is designed in the form of a plain bearing, which has a cylindrical pin on which the corresponding press-fit sleeve can be moved axially. In this way, thermal expansion can also be easily compensated. This cylindrical bearing pin is rigidly riveted to the slide, whereas the threaded bearing pin is rotatably attached to the slide.

In a further development, the third pivot bearing is arranged at a distance from the center line of the first and/or the second link in the latter. Both the third bearing and the second bearing are offset towards the inside of the room compared to the first pivot bearing.

The first pivot bearing preferably has an eccentrically arranged first bearing pin and is rotatably mounted. This first eccentric bearing pin allows the position of the pivot bearing to be slightly changed across the longitudinal direction of the rail, thereby adjusting the contact pressure of the sash on the fixed frame. In this way, differences in the thickness of the sealing rubber can be compensated for, or the position of the sash can be adjusted when using different sealing rubbers.

In a further development of the invention, the first pivot bearing is provided on a first slide. This makes it possible to adjustably mount the first slide in the rail, whereby the position of the rotation axis of the wing can be changed in the longitudinal direction of the rail. An eccentric pin is provided for adjusting the first slide. The use of an eccentric pin as an adjustment element has the significant advantage that the adjustment can be made continuously and with simple means, e.g. using a screwdriver, a hexagon key or the like.

Optimum movement conditions when the sash is swung open and its axis of rotation is removed from the adjacent sash are achieved by ensuring that the length ratio of the effective length of the second link to the first link is between 40% and 70%, in particular between 50% and 60%, preferably 55%. This primarily prevents a collision between the adjacent frames, in particular the overlaps, and a displacement of part of the rotated sash outwards.

Further advantages, features and details of the invention emerge from the following description, in which a particularly preferred embodiment is described in detail with reference to the drawing.

The features shown in the drawing and mentioned in the description and in the claims can be essential to the invention individually or in any combination. In the drawing:

Figure 1 is a view of a three-wing window, the two outer window wings being provided with handles;

Figure 2 shows the three-wing window according to Figure 1, with the right and middle wings opened, i.e. turned;

Figure 3 shows a section III - III according to Figure 1;

Figure 4 shows the view according to Figure 3 with the middle wing partially rotated;

Figure 5 is a side view of the fitting according to Figure 3; Figure 6 is a top view of the fitting according to Figure 4;

Figure 7 is an enlarged view of the second pivot bearing of the upper fitting;

Figure 8 is an enlarged view of the second pivot bearing of the lower fitting according to Figure 5; and

Figure 9 is a perspective view of the fitting according to Figure 6 showing the adjustment options.

Figures 1 and 2 show a window, designated overall by 10, which has a fixed frame 12 on which three wings 14, 16 and 18 are pivotally mounted. In addition, the wing 14 can be tilted about a horizontal axis. The wings 14 and 18 are provided with handles 24 on their wing frames 20 and 22, with which the wings 14 and 18 can be locked or brought into the turning or tilting position. The edge of the wing frame 26 of the wing 16 adjacent to the wing 18 is overlapped by the wing overlap of the wing 18, so that the wing 16 can only be opened when the wing 18 is also open. This position of the two wings 16 and 18 is shown in Figure 2, in which the two wings 16 and 18 are rotated about vertical axes.

Figure 3 shows the section III - III according to Figure 1, from which it can be seen that the sash frame 26 is surrounded on its side facing the interior 28 by a

The sash overlap 30 of the sash frame 20 is partially overlapped. The vertical axis of rotation 32 of the sash frame 26 is concealed behind this sash overlap 30. On the outside 34, the sash frame 20 of the sash 14 is partially overlapped by a sash overlap 36 of the sash frame 26.

Figure 4 shows the two wings 14 and 16, with the wing 16 partially opened, i.e. rotated about the axis of rotation 32. It can be seen that the axis of rotation 32 has moved slightly away from the wing 14, which is explained in more detail below.

The rotation axis 32 is provided on a fitting 38, the lower fitting part of which is shown in Figures 5 and 6. This fitting 38 has a rail 40 made of brass. The rail 40 has a U-shaped profile, the two legs 42 of which have free ends drawn inwards. In this way, a carriage 44 is held captive and free of play in such a way that it can be moved in the rail 40. A second link 48 is rotatably mounted on the carriage 44 by means of a second pivot bearing 46, this second link 48 extending parallel to the plane of the sash frame 26 of the sash 16, as can be seen from Figures 3 and 4. In the rail 40, a further

Carriage 50 (first carriage), on which a first link 54 is pivotally mounted via a first pivot bearing 52. The first link 54 and the second link 48 are coupled to one another via a third pivot bearing 56, which is provided at the free end of the first link 54 and engages approximately in the middle of the second link 48, but is arranged at a distance a from the center line 58 of the second link. The third pivot bearing 56 is at a distance b from the center line 60 of the first link 54. Preferably, the distances a and b are the same. It can also be seen from Figure 6 that the second pivot bearing 46, which forms the axis of rotation 32 of the middle wing 16, is also arranged at a distance c from the center line 58 of the second link 48.

In Figures 5 and 6 it is also shown that the rail 40 has a stop 60 against which the carriage 44 rests when the wing 16 assumes its maximum open rotational position. This stop 60 limits the opening movement. It can also be seen that when the wing 16 is opened, ie when the two links 48 and 54 are swung out, as shown in Figure 6, the carriage 44 is moved from its rest position, which is shown in Figure 5, in the direction of the stop 60. By moving the carriage 44 in the

Rail 40 shifts the axis of rotation 32 away from the sash 14, thereby preventing a collision of the two sash frames 26, in particular the sash overlap 30, with the part of the sash frame 26 facing the interior 28 of the room.

Figures 7 and 8 show, in enlarged representation, sections of the lower and upper parts of the fitting 38, in particular the lower second pivot bearing and the upper second pivot bearing 62. These pivot bearings 46 and 62 are riveted to the respective carriage 44 at 64, with the rivet head finding space in a recess 66 which is formed by the carriage 44 being U-shaped and resting only with its free, downwardly projecting leg ends on the sliding surface of the rail 40. In the second pivot bearing 46 of the lower part of the fitting 38, part of the circumference is provided with a thread 68 on which a press-in sleeve 70 sits, which has a corresponding internal thread. This press-in sleeve 70 is pressed into a corresponding opening in the second link 48. By turning the second pivot bearing 46, e.g. with a hexagon key, the press-in sleeve 70 is adjusted in height and thereby the height of the wing 16 is changed with the second link 48.

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The upper second pivot bearing 62 shown in Figure 7 has a smooth cylindrical body on which a press-in sleeve 70' is guided so as to be axially displaceable. This press-in sleeve 70' is adjusted when the lower second pivot bearing 46 is adjusted and thermal expansion can also be compensated for. In Figures 7 and 12 locking plates 12 are also shown which are fixed to the fixed frame together with the rail 40.

Figure 9 shows the lower part of the fitting 38 in perspective, where the adjustment options of the second pivot bearing 46, the first pivot bearing 52 and the first slide 50 by means of an eccentric pin 74 are clearly visible. The adjustment is preferably carried out using a hexagon key. The eccentric pin 74 is, as shown in Figure 6, arranged in a slot 76 in the slide 50, which extends transversely to the longitudinal axis of the rail 40. The bearing eccentric to the head of the eccentric pin 74 is located in the rail 40. If the eccentric pin 74 is now rotated, the slide 50 is displaced in the direction of the double arrow.

The first pivot bearing 52 is also designed as an eccentric pin, which is clearly shown in Figure 5. By turning the first pivot bearing 52, an adjustment

the bearing axis 80 in the direction of the double arrow 82. In this way, the closing pressure of the wing 16 can be adjusted.

From Figures 6 and 9 it can also be seen that the effective length of the second link 48 to the first link 54, i.e. the distance between the pivot bearings 46 and 56 to the distance between the pivot bearings 56 and 52, has a ratio of 55:100, i.e. 55%.

Claims (16)

1. Fitting for a window ( 10 ), a door or the like, with at least three rotatable wings ( 14 , 16 , 18 ), in which the axis of rotation ( 32 ) of at least one wing ( 16 ) executes a controlled movement orthogonal to the axis of rotation ( 32 ) when this wing ( 16 ) is rotated, with a rail ( 40 ) lying in the plane of the fixed frame ( 12 ), a first link ( 54 ) articulated to the rail ( 40 ) via a first pivot bearing ( 52 ) and a second link ( 48 ) displaceable on the rail ( 40 ) and mounted via a second pivot bearing ( 46 ), the first and second links ( 54 and 48 ) being coupled to one another via a third pivot bearing ( 56 ), and the second link ( 48 ) extends parallel to the sash frame ( 26 ) and wherein the second pivot bearing ( 46 ) of the second link ( 48 ) has an offset (c) to a plane which is parallel to the plane of the fixed frame ( 12 ) and in which the first pivot bearing ( 52 ) lies. 2. Fitting according to claim 1, characterized in that the second pivot bearing ( 46 ) and thus the axis of rotation ( 32 ) is located next to the sash frame ( 26 ). 3. Fitting according to one of the preceding claims, characterized in that the distance of the second link ( 48 ) with respect to the rail ( 40 ) and thus the height of the sash ( 16 ) can be changed, in particular adjusted, via the second pivot bearing ( 46 ). 4. Fitting according to one of the preceding claims, characterized in that the second pivot bearing ( 46 ) is provided on a second carriage ( 44 ) which is displaceably guided on the rail ( 40 ). 5. Fitting according to claim 4, characterized in that the rail ( 40 ) has a substantially U-shaped profile and that the second carriage ( 44 ) is guided on both sides. 6. Fitting according to claim 4 or 5, characterized in that the second carriage ( 44 ) has a U-shaped profile that is essentially open downwards. 7. Fitting according to one of claims 4 to 6, characterized in that the second pivot bearing ( 46 ) is riveted to the second carriage ( 44 ). 8. Fitting according to one of the preceding claims, characterized in that the second pivot bearing ( 46 ) has a second bearing pin which carries a thread ( 68 ) over part of its circumference, onto which a press-in sleeve ( 70 ) which is connected to the second link ( 46 ) is screwed. 9. Fitting according to claim 8, characterized in that the second bearing pin ( 46 ) is rotatable. 10. Fitting according to one of the preceding claims, characterized in that the third pivot bearing ( 56 ) is arranged in the second link ( 48 ) at a distance (a) from the center line ( 58 ) of the latter. 11. Fitting according to one of the preceding claims, characterized in that the first pivot bearing ( 52 ) has an eccentrically arranged first bearing pin and is rotatably mounted. 12. Fitting according to one of the preceding claims, characterized in that the first pivot bearing ( 52 ) is provided on a first carriage ( 50 ). 13. Fitting according to claim 12, characterized in that the first carriage ( 50 ) is adjustably mounted in the rail ( 40 ). 14. Fitting according to claim 13, characterized in that an eccentric pin ( 74 ) is provided for adjusting the first slide ( 50 ). 15. Fitting according to one of the preceding claims, characterized in that the length ratio of the effective length of the second link ( 48 ) to the first link ( 54 ) is between 40% and 70%, in particular between 50% and 60%, preferably 55%. 16. Fitting according to one of the preceding claims, characterized in that the second axis of rotation ( 46 ) lies behind the wing overlap ( 30 ) of the adjacent wing ( 14 ).